I couldn't find any wireless charging accessories anywhere in Canada. I had to order them online from Amazon.com. I managed to snag 3 Nokia wireless charging stands for 69.99$ USD plus shipping and duty and taxes but at least they shipped to Canada. From reading some other posts I heard that Microsoft stores had the wireless charging stand for sale but if you're looking for the wireless charging plate in particular I'm not sure they're available anywhere in Canada at the moment.

I had my brother order one from AT&T a few weeks ago, however, you can only ship within the states. Also, he still hasn't received it yet and they're out of stock. As for price, it wasn't too bad, it was $49.99US